Quentin Tarantino — who wrote the line, “I’m gonna get medieval on your ass” — has no patience for unprepared actors. After our report that “Inglourious Basterds” star Diane Kruger saw the director fire a hapless thespian for not bringing a pen to rehearsal, Tarantino told Page Six, “I’m not really sure what she’s referring to . . . However, any actor who shows up at rehearsal without a pen to make notes in their script isn’t professional enough to either be in my movie or worthy enough to be trusted with one of my characters.” He added, “That’s actually part of rehearsal: to test the actors, and if they’re not up to snuff, get rid of them. That’s my job, making sure I’ve picked the right people.” Actors, you’ve been warned.